# -*- coding: utf-8 -*-
##
## This file is part of CDS Invenio.
## Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008 CERN.
##
## CDS Invenio is free software; you can redistribute it and/or
## modify it under the terms of the GNU General Public License as
## published by the Free Software Foundation; either version 2 of the
## License, or (at your option) any later version.
##
## CDS Invenio is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
## General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with CDS Invenio; if not, write to the Free Software Foundation, Inc.,
## 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
"""BibFormat element - Prints a link to BibEdit
"""
__revision__ = "$Id$"

def format(bfo, style):
    """
    Prints a link to BibEdit, if authorization is granted

    @param style: the CSS style to be applied to the link.
    """
    from invenio.config import CFG_SITE_URL
    from invenio.access_control_engine import acc_authorize_action
    from invenio.search_engine import guess_primary_collection_of_a_record

    out = ""

    user_info = bfo.user_info
    collection = guess_primary_collection_of_a_record(bfo.recID)
    (auth_code, auth_message) = acc_authorize_action(user_info,
                                                     'runbibedit',
                                                     collection=collection)
    if auth_code == 0:
        print_style = ''
        if style != '':
            print_style = 'style="' + style + '"'

        out += '<a href="' + CFG_SITE_URL + '/record/' + str(bfo.recID) + \
            '/edit/" ' + print_style + '>Edit This Record</a>'

    return out

def escape_values(bfo):
    """
    Called by BibFormat in order to check if output of this element
    should be escaped.
    """
    return 0
